公开(公告)号：US3585438A

公开(公告)日：1971-06-15

申请号：US3585438D

申请日：1969-06-03

Applicant: STROMBERG DATAGRAPHIX INC

Inventor： BELL ALEXANDER

IPC: H01J1/26 ,  H01J1/00 ,  H01J1/46

CPC classification number: H01J1/26

Abstract: A cathode for an electron tube is described in which a plurality of coating strips of electron emissive material are distributed parallel with each other over the face of a base. Projecting means along opposite edges of each strip extend above the surface of the base and toward each other to form a gap for the passage of electrons. Also described are a method for making such a cathode, and a tool useful in performing the method of the invention.

公开(公告)号：US3262814A

公开(公告)日：1966-07-26

申请号：US15925561

申请日：1961-12-14

Applicant: PHILIPS CORP

Inventor： HENRI PROVISOR

IPC: H01J1/26 ,  H01J9/04

CPC classification number: H01J1/26 ,  H01J9/04

公开(公告)号：US2975050A

公开(公告)日：1961-03-14

申请号：US66352557

申请日：1957-06-04

Applicant: SUPERIOR TUBE CO

Inventor： BOUNDS ARDREY M ,  HOFF RICHARD L

IPC: C22C19/00 ,  H01J1/26

CPC classification number: H01J1/26 ,  C22C19/007

公开(公告)号：US2942137A

公开(公告)日：1960-06-21

申请号：US69698657

申请日：1957-11-18

Applicant: GEN ELECTRIC

Inventor： TAYLOR CHARLES L

IPC: H01J1/26

CPC classification number: H01J1/26

公开(公告)号：US2936385A

公开(公告)日：1960-05-10

申请号：US73092758

申请日：1958-04-25

Applicant: WESTERN ELECTRIC CO

Inventor： KAUFMAN ROY L

IPC: H01J1/26

CPC classification number: H01J1/26

公开(公告)号：US2892115A

公开(公告)日：1959-06-23

申请号：US55454255

申请日：1955-12-20

Applicant: ITT

Inventor： PAUL RUDNICK

IPC: H01J1/26 ,  H01J29/48

CPC classification number: H01J1/26 ,  H01J29/485

公开(公告)号：US2887607A

公开(公告)日：1959-05-19

申请号：US25081851

申请日：1951-10-11

Applicant: GEN ELECTRIC

Inventor： MILLIS WALTER T

IPC: H01J1/26

CPC classification number: H01J1/26

公开(公告)号：US2858207A

公开(公告)日：1958-10-28

申请号：US55490755

申请日：1955-12-22

Applicant: CHARLES BERTOLUS ETS

Inventor： WARIN MAURICE P

IPC: C22C19/00 ,  H01J1/22 ,  H01J1/26 ,  H01J61/067

CPC classification number: C22C19/00 ,  H01J1/22 ,  H01J1/26 ,  H01J61/0675

公开(公告)号：US2266622A

公开(公告)日：1941-12-16

申请号：US34877140

申请日：1940-07-31

Applicant: RCA CORP

Inventor： GREEN NORVAL H

IPC: H01J1/26

CPC classification number: H01J1/26

公开(公告)号：US2140534A

公开(公告)日：1938-12-20

申请号：US11992837

申请日：1937-01-11

Applicant: KEN RAD TUBE AND LAMP CORP

Inventor： MAHONEY CHARLES H

IPC: H01J1/26

CPC classification number: H01J1/26 ,  Y10S428/928 ,  Y10S428/93 ,  Y10T428/12611 ,  Y10T428/12951 ,  Y10T428/12986